If you just spend your time___ gains and losses, maybe you'll get nothing in the end．
A．checking B．weighing C．balancing D．examining
According to the newly-made traffic regulation, whoever drives through red light be fined at least 200 dollars．
A．shall B．may C．would D．should
He is very popular among his students as he always tries to make them ____ in his lectures．
A．interested B．interesting C．interest D．to interest
I'm afraid I'm not ___ to help with the show, for I am fully occupied with my own project
A．dependable B．convenient C．available D．accessible
—Should I lock the lab before I go home?
—_ _．I'll check it myself later．
A．Go ahead B．No problem C．No hurry D．Don't bother
Thanks to our ___ schedule, we got our task accomplished ahead of time．
A．active B．flexible C．positive D．fixed
